Recent content by Rover05

OK Tony. I'll be back..............in Arnie style with some temp measurements. Incidentally when I ran it for a few weeks on distilled, it was dosed with de-scaler - drainings did eventually run clear. Like I siad pretty handy but boiler internals are not on my radar. Cheers for all the...

Hi Tony, appreciate your efforts. The pipework/installation was done 15 years ago. Hence the 8mm bore - I believe the internals are reasonably clean. I did flush several times using mains pressure, than ran it for a while on distilled before finally draining and refilling with distilled and...

All the rads have TRV inlets. What's an auto by-pass? I thought the mentioned bypass was a reference for the manual B/P near the pump - which I've shut to make sure 100% flow is driving thru' the boiler. Not a plumber, a jack of all trades - boiler internals are beyond my expertise. Edit: I...

No, atleast three wide open -- most throttled to half, they're all TRV's. Gut says pump underperforming, but maybe boiler coked or airlocked.

Cheers gas4you, Grundfos is on position 3 too. Don't know whether to take a punt and replace pump or just get BG around to look at the boiler. I'm pretty handy but draw the line at boilers!!!! :?

Hi guys, Re the bypass - there is a manual hand valve.I now have it completely shut, hopefully forcing as much round the system as possible. Re the pump, it is a Grundfos 15-60. It gets very hot. When the bleed screw is removed from the centre - should water literally p*ss out or are the...

Try switching off pump and boiler. Isolate all seven rads. Then bring on demand with stat and power on the pump, leave the boiler off. INDIVIDUALLY, open and bleed each rad in turn. IE, only one open to the system at a time - which is then bled. Repeat for all seven. This method gives the...

Hi all, Recently moved into a house with a newish boiler - ideal classic HE. Unfortunately the pipework is all 8mm microbore. So I've power flushed the system and refilled with mainly distilled (hard water area) and fernox. Other than regular rad bleeding - as with all drained and flushed...